Citrus fruit juice extractor



July 8, 1952 R. J. TRAINOR CITRUS FRUIT JUICE EXTRACTOR Filed Dec. 7, 1948 3 Sheets-Sheet 1 BOBEQTJ. T240402,

a mmvrox HTTOIQNEVS y 1952 R. J.-TRAINOR CITRUS FRUIT JUICE EXTRACTOR 3 Sheets-Sheet 2 Filed Dec. '7, 1948 9 w] J m E w 2 7 8 66 w S'VIIIIIIIIIIIIIIII All A A IIIIIIIIIII y tw fiTTOE/VEVS Patented July 8, 1952 r 1 2,602,479 CITRUS FRUIT JUICE EXTRACTOR Robert J. Trainor, El Monte, Calif., assignor to Earle E. Crowe,

El Monte, Calif.

Application December 7, 1948, Serial No. 63,887

' This invention relates to a citrus fruit juice extractor wherein citrus fruit are fed to the machine and automatically split into halves; reamed to obtain the juice which is discharged from the machine through one outlet, and the peels are discharged from another outlet.

A number of machines ject to the objection that they are difficult to clean after the juicing operation has been completed. The difficulty in cleaning the machine usually arises from'the fact thatshafts or other moving parts thereof are supported at opposite ends by bearing frames, walls or equivalent structures and the presence of these structures interferes with the cleaning operation.

A primary object of the present invention is to provide an improved machine of this character wherein the cup-providing means that provides the'cups which receive the fruit halves as well'as the reaming means which operate in conjunction therewith are all supported in an outboard manner, that is, on'the ends ofshafts or sleeves which ends are free or unsupported. By this arrangement the gearing or operating mechanism which rotates the cup-providing means and the reaming means can be located entirely behind a wall or partition and a' removable transparent wall can be located forwardly of the cup-providing means and reaming means which will enable the operation of the machine to be watched at all times and 'on removal the various parts are largely exposed to facilitate cleaning.

In machines of this character due to the fact that they are designed to handle fruit that has been classified in several different sizes, it is frequently necessary to replace the cup-providing means from time to time so as to have cups of a size commensurate with the size of fruit that is being employed. The improved outboard arrangement greatly facilitates the removal and replacement of the cup-providing means in an axial direction inasmuch as the outer end of the shafts on which the cup-providing means are cated are free and unsupported.

' Ejectors are generally employed in conjunction with the cup-providing means to eject the reamed peels from the cups thereof. These ejectors are arranged to extend into grooves that traverse the'cups of the cup-providing means. In effecting a removal and replacement of the cup-providing means it is necessary to remove the ejector from the cup-providing means to enable replacement. It is therefore another object of the pres- 6 Claims. (Cl. 146-3) have heretofore been designed for accomplishing the same general purpose but these machines generally have been sub- 2 ent invention to provide ejector is shiftably mounted on the machine to assume either a position wherein it will eject the peels from the cups'or a non-operative posi-' tion wherein it will not interfere with the re moval and replacement of the cup-providing .meansf Y With the foregoing which will be made detailed description and specifically pointed 'out in the appended claims, reference is had to the accompanying drawings for an illustrative embodiment of the invention, wherein:

Figure 1 is a top tion; 1

Fig. 2 is a rear view in elevation of the same,

parts being broken away and shown in vertical section;

Fig. 3 is a view in front elevation of the same,

parts being broken away and shown in vertical section Fig. 4 is a horizontal section taken substantially v upon the line 4-4 upon Fig. 3;

Fig. 5 is a vertical upon the line 5-5 upon Fig, 3;

Fig. 6 is a partial view in vertical section taken substantially upon the line 6-6 upon Fig. 3; and Fig. 7 is a sectional view taken substantially;

upon the line 1-! upon Fig. 3.

Referring to the accompanying drawings wherein similar reference characters designate similar parts throughout, the improvedmachine consists of an outer housing or case generally indicated at [0, having a base II and top, bottom in the compartment l1 between the partition l5 and the wall formed by the partial front wall [2 and the panel l3.

Within the gearing compartment there are susv pended front and rear frames l8 and I9. These frames may be suspended within the housing or case l0 such as by cap screws 20. They provide bearings for longitudinally extending shafts and sleeves. Thus near the top of the case Hi there are two parallel shafts able in bearings in both of the frames l8 and a machine wherein the and other objects in view, manifest in the following plan view of the citrus fruit' squeezing machine embodying the present invensection taken substantially 2| and 22 which are rotat l9 and which project forwardly through the partition l5 and have their forward ends free or unsupported within the squeezing compartment 11. In a similar manner sleeves 23 are rotatably supported by the frames l8 and I9 and have their forward ends extended through the partition or wall I5 in such a manner as to be free or unsupported within the compartment l1. Shafts 24 and 25 are rotatablydisp'osed within thesesleeves the pinion 32 meshes with a gear 33 which is on the forward end of the sleeve 23 surrounding shaft 24.- V 34 and this gear in. turn. mesheswith a gear 35. The gears 34 and 35 are keyed to the: shafts 2i and 22, respectively. Thegear'35;meshes witha gear 36 .which is on the sleeve shaft-25. The gear 36 meshes 38 that meshes with the pinion rate of speed but pinion 32 will; drive thegear 33 and its sleeve at arelatively low rate of speed. The four gears'33, 34,- 35 and 36 are of equal diameter so that the two shafts 2i and 2 2 will'be driven at equal rates of speed but'in opposite directions. Similarly, the gears 33 and 36 will cause theirsleeves 23 to rotate at the same rate of speed but in opposite directionsthus main-; taining proper synchronism between theshafts 2 I. and 22 and the sleeves 23. The shafts 24 and 25 which rotate within the sleeves 23 will be driven at higher speeds in order to rotate the reamers at proper speed. V V

On the forwardcndsof the shafts 21! and 22 which are free or unsupported in the squeezing compartment I! there are cup-providing means indicated at 39 and 40, respectively. Thesecupproviding means are in the form of circularcast ings 'or the equivalent which have generally hemispherical recesses 4i formed" on their peripheries as illustrated. There are only two of such cups on each cup-provider arranged diametrically opposite; each other. Each cup-provider is detachably secured on' the. forward end of its shaft such as by acap or the equivalent, indicated at 42. On'removal of this cap each cup-provider can be slipped axially'oif of the forward end of its shaft; Each cup-provider has an annular groove 43 formed therein which traverses or bisects the cups or recesses -4l formed-therein. This groove is designed to receive a peel ejector 44 which, during rotation of the cup,'-providers, will pass behind the peels P disposed in the cups and eject the peels there from. 7

Between the'cup-providers there is arranged a vertical knife 45 the cutting, edge of which is somewhat W-shaped, as illustrated in Fig. 6. This knife merges at its lower end with diverters 46. which arepreferablyj not quite concentric with the cup providers. It is desirable to have the vertical length of the knife blade below the horizontal diameters ofthe cup-providers approximately equalto the diameter of the citrus fruit to be split. In this manner, by having. a

through a gear. a longitudinally gear meshes with al on the forwardend The gear 36 Gear 33 in turn meshes with gear 23 thatsurrounds. with a pinion on; a countershaft 3'! on which there is a large gear;

on ha t 5: 1; B this arrangement, when the motor 26 is operated, gear 30 will drive the shaft 24 at a relatively. high.

fruit will be cut thereby ;lower substantial vertical length of knife blade before the halves of the fruit encounter the diverters 46, the fruit may be split without tearing. The fruit F are fed to the machine by being passed down a suitable chute 47 and drop consecutively through an opening 48 in the top of the squeezing compartment I1. When opposed cups 4| on the cup-providers move towards each other these cup's'receive theifruit and pass it downwardly against the knife 45 and, as above explained, if the knife has a substantial vertical length the instead of having the portions of the halves spread apart which results/in a tearing. The lower ends of the difverters 46 more nearly approach the peripheries ofthecup-providers so that the halves will be efiectively crowded thereby into the cups of the cup-providers.

The forward ends of the sleeves 23 carry reamer holders 49 which are in the form of v housings rotated by the sleeves 23 in the directions indicated by the'arrows on Fig. 3. ,The forward ends of the shafts 24 and 25 extend into these housings respectively and carry miter gears 50 which mesh with beveled pinions 5| on short the reamers enter the cups as they pass beyondthe lowerencls ofthe diverters '46. The reamers are continuouslyrotated at relatively high speed about theirrespective axes due to the relatively high speeds of rotation Thus reaming the-pulp ofthe shafts 24 and 25. from within the peels P continued rotation withdraws theireamers'from the peels and the cup-providers carry the peels against the peel ejectors 44' so asto eject the peels from the cups.

The juice extracted descends by gravity onto a perforated plate .53 which is inclined downwardly and'forwa'rdly toward an outlet openingj54 in the partial frontwall [2. At the sides of this-plate there may be grates, indicatedat 55, consisting merely-of bars that are secured to- 'gether by-m'eans of a top bar 56 and to the sides of the housing or case. These bars extend downwardly and inwardly toward the sides of the plate '53. rated plate 53, are designed to permit juice, small piecesof pulp, and-seeds to pass therethroughinto a lower juice compartment 5'! disposed below the plate. The ejected peels fall by gravity onto the plate and aredirected outwardly through the opening plate 58 is secured to the low'er'side of the frame l4 surrounding the transparent panel l3 which is designed to temporarilyretard descent of the peels until any juice carriedthereby has an opportunity to drain therefrom onto the plate 53 andpass through the perforations into the juice compartment.

The bottom of the juice compartment slopes toward an outlet 60 which discharges into a cylindrical screen 6L. Within this screen; blades 62 which are carried by the forward end of shaft 29 wipe the interior of the screen. These blades are preferably helically formed so as to feed or work pulp and seeds through an outlet 63 normally closed by a gravity gate 64. The juice passing through the screen may be collected in a lower compartment 65 and released therefrom such as through a faucet or tap 66.

By means of this construction it will be appreciated that due to the outboard arrangement of the cup-providers and the reamers the operation The grates, together with the perfo 54. Preferably a guard of the plate 7 acoaevo of the machine can be seen-at alltimes through the transparent panel .l3.; At the conclusion of a juicing operation,-.panel l3 isremoved, which removes with it the guard p'late.58, thus leaving the-entire interionof the juice compartment exs posed. Cleaning of the reamers and of the cupproviders is consequently greatly facilitated in that there are no interfering parts or walls to hinder or obstruct the cleaning operation.

In squeezing fruit of different sizes the cupproviders may have to be replaced from time to time to provide cups of the desired size. To this end the peel ejectors Mare pivotally mounted as at 61. on brackets 68 that are mounted on the wall or partition l5. These brackets carry spring actuated plungers 69 which servetohold the peel ejectors ineither of the two positions illustrated in Fig. 3. When the peel ejectors are disposed in the full line position shown-the spring'actuated buttons 69 retain them in thisposition' wherein they are traversing the groove 43 behind the cups. However, on depressing the spring actuated plungers or buttons it is possible to swing the peel ejectors shown, remote from the cup-providers. When the peel ejectors are in this position, on removing the cap 42 the cup-providers can be bodily removed in an axial direction from their respective shafts and replaced with other cup-providers having properly'handle the fruit to be squeezed. This operation can be very conveniently performed on merely removing the removable panel l3.

From the above described construction it will be appreciated that an improved citrus fruit squeezing machine has been developed which is highly advantageous in that the squeezing operation can be watched at all times through the panel l3. When the squeezing operation is completed the machine can be very easily and quickly cleaned as there are no interfering parts that will prevent washing of all surfaces on the interior of the squeezing compartment. Whenever it is necessary to change sizes of the cupproviders or reamers this is also easily accomplished on merely removing the panel l3 and swinging the peel ejectors into their inoperative positions.

While the machine disclosed herein shows each cup drum as having only two cups and corresponding reamers therefor, it will be appreciated that the number of cups may be increased if desired and that there may be a corresponding increase of reamers.

Various changes may be made in the details of construction without departing from the spirit and scope of the invention as defined by the appended claims.

I claim:

1. In a citrus fruit juice extractor, a wall, cup-providing means mounted for rotation in outboard relationship to said wall, reaming means mounted for rotation in outboard relationship to said wall for reaming fruit halves in the cupproviding means, a removable transparent panel disposed forwardly of the cup-providing means and the reaming means, means for ejecting peels from the cup-providing means, means for 001- lecting the ejected peels and discharging them from the machine, said means being perforated for the passage of juice, and a guard plate carried by the transparent panel and disposed over the outlet for the ejected peels.

2. In a citrus juice extractor, a frame, a shaft rotatably mounted in the frame and having a into the dotted-line position different sizes of cups which will portion extending from the frame in cantilever fashion, a cup-providing .member on the outboard end of the shaft, means; for'releasably fastening the cup-providing member tothe shaft to permit'the cup-providing member to be, removed ofi the end of the. shaft, the cup-providing mem-. her having an annular groove traversing the cups; a peel ejector mounted on the frame for swing ing movement optionally swingable to a position within the cup-providing member to eject peels or to a position without the cup-providingmemher to allow the cup-providing member to 'be' axially removed, and a spring actuated "button arranged in the path of'the peel ejector for;re-' taining the 'peelejector-in eitherof the abovementioned positions and adapted to be depressed so as to be moved out of'the path of the ejector to permit the ejector to be moved from one position to the other.

3. In a citrus fruit juice extractor, means pro-- viding a wall, a pair of shafts rotatably extending through the wall, complementary cupproviding members removably. mounted 1 on the outboard end of said shafts, sleeves rotatably extending through the wall, shafts rotatably supported within the sleeves, hollow reamer carriers mounted on the outboard ends of said sleeves, reamers, reamer shafts having the reamers mounted thereon, said reamer shafts being rotatably mounted in the hollow carriers, gearing connecting the shafts within the sleeves and the reamer shafts for rotating the reamers, means for synchronously rotating the sleeves and the first-named shafts to cause the reamers to enter the cup for reaming purposes and also to rotate the shafts within the sleeves, the cup-providing members having the cups thereof traversed by an annular groove, peel ejectors swingably mounted on the wall optionally movable to a position within the cup-providing members to eject peels or to a position without the cup-providing members to allow the cup-providing members to be axially removed, and spring actuated buttons arranged in the paths of the swingably mounted peel ejectors for retaining the ejectors in either of the above-mentioned positions adapted to be depressed to be moved out of the paths of the ejectors to permit the ejectors to be moved from one position to the other.

4. In a citrus juice extractor, a housing having a wall partitioning the housing into a front and back section, cup-providing means mounted for rotation in outboard relationship to said wall, reaming means mounted for rotation in outboard relationship reaming fruit halves in the cup-providing means, the housing providing an opening forwardly of the cup-providing means and the reaming means, a window having inwardly extending side, top, and bottom flanges removably held within the opening by releasable means, said flanges deflecting juice away from the joint between the window and the housing, means for ejecting peels from the cup-providing means, another opening in the housing located forwardly and below the reaming-means, means for guiding peels toward said another opening, and a juice deflector guard fastened to the window and removable therewith and disposed above said another opening to deflect juice away from said another opening,

5. In a providing a front wall and an intermediate wall disposed behind the front wall and providing a compartment, cup-providing means removably mounted for rotation in outboard relationship to said intermediate wall and removable in a directo said wall for citrus fruit juice extractor, a housing tion normal to the wall, reaming means removably mounted for rotation halves in the cup-providing means and being removable in a direction normal to the wall, a removable transparent panel in the 6. In a citrus fruit juice extractor, a housing Wall and an intermediate Wall REFERENCES CITED" The following referencesare of record inthe file of this patent:

UNITED STATES PATENTS Number Name Date 1,386,552 Carney 1 Aug. 2, 1921 2,065,271 Faulds Dec. 22, 1936 2,181,514 'Lachm'an Nov. 28, 1939 2,199,876 Brown a May 7, 1940 2,332,177 Smith Oct. 19, 1943 

